GeForce GT 645M vs Radeon HD 5750

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 645M and Radeon HD 5750. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 645M and Radeon HD 5750. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce GT 645M is a Laptop Graphics Card

Note: GeForce GT 645M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GT 645M here:

Main Specs

  GeForce GT 645M Radeon HD 5750
Power consumption (TDP) 32 Watt 86 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin
Memory type DDR3\GDDR5 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 5750 has 168% more power consumption, than GeForce GT 645M.
  • GeForce GT 645M is connected by PCIe 3.0 x16, and Radeon HD 5750 uses PCIe 2.0 x16 interface.
  • GeForce GT 645M has 1 GB more memory, than Radeon HD 5750.
  • GeForce GT 645M is used in Laptops, and Radeon HD 5750 - in Desktops.
  • GeForce GT 645M is build with Kepler architecture, and Radeon HD 5750 - with TeraScale 2.
  • GeForce GT 645M is manufactured by 28 nm process technology, and Radeon HD 5750 - by 40 nm process technology.
  • Memory clock speed of Radeon HD 5750 is 2800 MHz higher, than GeForce GT 645M.

Game benchmarks

high / 1080p 1−2 3−4
ultra / 1080p 0−1 2−3
QHD / 1440p 0−1 0−1
low / 720p 12−14 14−16
medium / 1080p 2−3 5−6
The average gaming FPS of Radeon HD 5750 in Assassin's Creed Odyssey is 60% more, than GeForce GT 645M.

Full Specs

  GeForce GT 645M Radeon HD 5750
Architecture Kepler TeraScale 2
Code name N13P-GS Juniper
Type Laptop Desktop
Release date 22 March 2012 13 October 2009
Pipelines 384 720
Core clock speed 700 MHz
Transistor count 1,270 million 1,040 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 22.7 billion/sec 25.20
Floating-point performance 544.5 gflops 1,008.0 gflops
Length 178 mm
Memory bus width 128bit 128 Bit
Memory clock speed 1800 MHz 4600 MHz
Memory bandwidth 73.6 GB/s
Shared memory -
DirectX 12 API 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.5 4.4
OpenCL 1.1 1.2
Vulkan 1.1.126 N/A
CUDA +
CUDA cores 384
Bus support PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 19 Mh/s
Laptop size medium sized
Optimus +
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